/* Pejvak Hooshmand — one dark cinematic world: a fixed WebGL echo-tunnel behind the page, content floats over it in glass panels. */
@font-face { font-family: 'Vazirmatn'; font-weight: 400; font-display: swap; src: url('../fonts/Vazirmatn-Regular.woff2') format('woff2'); }
@font-face { font-family: 'Vazirmatn'; font-weight: 500; font-display: swap; src: url('../fonts/Vazirmatn-Medium.woff2') format('woff2'); }
@font-face { font-family: 'Vazirmatn'; font-weight: 700; font-display: swap; src: url('../fonts/Vazirmatn-Bold.woff2') format('woff2'); }
@font-face { font-family: 'Vazirmatn'; font-weight: 800; font-display: swap; src: url('../fonts/Vazirmatn-ExtraBold.woff2') format('woff2'); }

:root {
  color-scheme: dark;
  --bg: #03070F;
  --navy: #0B1B3A;
  --ink: #EAF6F4;
  --soft: #C6D7E0;
  --dim: #8FA6B6;
  --teal: #19CDBD;
  --teal-deep: #0E9F93;
  --amber: #F2B45A;
  --line: rgba(143, 166, 182, 0.16);
  --glass: rgba(5, 13, 30, 0.74);
  --glass-strong: rgba(4, 11, 26, 0.9);
  --f: 'Vazirmatn', Tahoma, 'Segoe UI', sans-serif;
  --gl: max(16px, env(safe-area-inset-left, 0px));
  --gr: max(16px, env(safe-area-inset-right, 0px));
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--f); font-size: 16px; line-height: 1.9; direction: rtl; overflow-x: hidden; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 60; background: var(--bg); }
img { max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 8px; }
[hidden] { display: none !important; }
.ltr { direction: ltr; unicode-bidi: embed; display: inline-block; }

#stage { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; display: block; background: radial-gradient(120% 90% at 50% 20%, #0A1B3A 0%, #03070F 60%); }
.vignette { position: fixed; inset: 0; z-index: 1; pointer-events: none; background: radial-gradient(130% 95% at 50% 40%, rgba(3,7,15,0) 45%, rgba(3,7,15,0.82) 100%); }
.grain { position: fixed; inset: -50%; z-index: 2; pointer-events: none; opacity: .06; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); animation: grain 1.2s steps(6) infinite; }
@keyframes grain { 0% { transform: translate(0,0); } 33% { transform: translate(-3%, 2%); } 66% { transform: translate(2%, -3%); } 100% { transform: translate(0,0); } }

.page { position: relative; z-index: 3; }
.wrap { max-width: 1200px; margin-inline: auto; padding-left: var(--gl); padding-right: var(--gr); }

/* header */
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: linear-gradient(180deg, rgba(3,7,15,.82), rgba(3,7,15,.35)); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 22px; padding-block: 11px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex: none; }
.brand img { height: 34px; width: auto; display: block; }
.brand b { font-weight: 800; font-size: 19px; letter-spacing: -.2px; }
.brand span { font-weight: 400; font-size: 19px; color: var(--dim); }
.menu { display: flex; gap: 24px; margin-inline-start: auto; }
.menu a { text-decoration: none; color: var(--dim); font-size: 14.5px; font-weight: 500; transition: color .2s; }
.menu a:hover, .menu a[aria-current="page"] { color: var(--ink); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; text-decoration: none; font-family: var(--f); font-weight: 700; font-size: 15px; border-radius: 999px; padding: 11px 22px; border: 1px solid transparent; cursor: pointer; white-space: nowrap; transition: transform .25s, background .25s, border-color .25s, box-shadow .25s; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--teal); color: #021A18; box-shadow: 0 0 0 rgba(25,205,189,0); }
.btn-primary:hover { background: #47E3D6; box-shadow: 0 10px 40px -10px rgba(25,205,189,.6); }
.btn-ghost { background: rgba(234,246,244,.04); border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: rgba(25,205,189,.6); }
.sound { display: inline-flex; align-items: center; gap: 9px; font-family: var(--f); font-size: 13.5px; font-weight: 500; color: var(--dim); background: rgba(234,246,244,.04); border: 1px solid var(--line); border-radius: 999px; padding: 7px 14px; cursor: pointer; flex: none; }
.sound.on { color: var(--ink); border-color: rgba(25,205,189,.6); }
.bars { display: inline-flex; align-items: flex-end; gap: 2px; height: 14px; }
.bars i { width: 2.5px; height: 4px; border-radius: 2px; background: currentColor; }
.sound.on .bars i { background: var(--teal); animation: eq 1s ease-in-out infinite; }
.sound.on .bars i:nth-child(2) { animation-delay: -.25s; } .sound.on .bars i:nth-child(3) { animation-delay: -.5s; } .sound.on .bars i:nth-child(4) { animation-delay: -.75s; }
@keyframes eq { 0%,100% { height: 4px; } 50% { height: 14px; } }
.burger { display: none; background: none; border: 1px solid var(--line); color: var(--ink); border-radius: 12px; width: 42px; height: 38px; cursor: pointer; flex: none; }
.burger span { display: block; width: 18px; height: 2px; margin: 4px auto; background: currentColor; border-radius: 2px; }

/* entry gate */
.gate { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; background: radial-gradient(80% 70% at 50% 50%, rgba(10,27,58,.55), rgba(3,7,15,.96) 70%); transition: opacity 1.1s ease, visibility 1.1s; padding: 24px var(--gr) 24px var(--gl); }
.gate.out { opacity: 0; visibility: hidden; }
.gate-in { text-align: center; display: grid; gap: 18px; justify-items: center; max-width: 560px; }
.gate-logo { width: 74px; height: auto; filter: drop-shadow(0 0 24px rgba(25,205,189,.45)); animation: breathe 3.2s ease-in-out infinite; }
@keyframes breathe { 0%,100% { transform: scale(1); } 50% { transform: scale(1.06); } }
.gate h2 { margin: 0; font-size: clamp(34px, 7vw, 64px); font-weight: 800; line-height: 1.15; letter-spacing: -.5px; }
.gate h2 span { font-weight: 400; color: var(--dim); }
.gate p { margin: 0; color: var(--soft); font-size: 15.5px; }
.count { font-size: 13px; letter-spacing: 3px; color: var(--teal); font-variant-numeric: tabular-nums; direction: ltr; }
.gate-line { width: min(320px, 70vw); height: 2px; background: var(--line); border-radius: 2px; overflow: hidden; }
.gate-line i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--teal-deep), var(--teal)); transition: width .3s; }
.gate-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; opacity: 0; transform: translateY(8px); transition: opacity .6s, transform .6s; pointer-events: none; }
.gate.ready .gate-actions { opacity: 1; transform: none; pointer-events: auto; }
.gate small { color: var(--dim); font-size: 12.5px; }

/* sections */
.hero { min-height: min(100svh, 980px); display: flex; flex-direction: column; justify-content: flex-end; padding-block: 64px 80px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 13.5px; font-weight: 700; color: var(--teal); letter-spacing: .3px; }
.eyebrow::before { content: ""; width: 28px; height: 2px; border-radius: 2px; background: var(--teal); }
.hero h1 { margin: 12px 0 0; font-weight: 800; font-size: clamp(56px, 11vw, 150px); line-height: 1.02; letter-spacing: -2px; text-wrap: balance; text-shadow: 0 0 60px rgba(25,205,189,.25); }
.hero h1 .soft { font-weight: 400; color: var(--dim); }
.lead { max-width: 640px; margin: 20px 0 0; font-size: clamp(16.5px, 1.6vw, 19.5px); color: var(--soft); line-height: 2; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.cue { margin-top: 46px; display: inline-flex; align-items: center; gap: 12px; color: var(--dim); font-size: 13px; }
.cue i { width: 22px; height: 34px; border: 1.5px solid var(--dim); border-radius: 12px; position: relative; }
.cue i::after { content: ""; position: absolute; top: 6px; left: 50%; width: 3px; height: 7px; margin-left: -1.5px; border-radius: 2px; background: var(--teal); animation: cue 1.6s ease-in-out infinite; }
@keyframes cue { 0% { transform: translateY(0); opacity: 1; } 80% { transform: translateY(12px); opacity: 0; } 100% { opacity: 0; } }

section.block { padding-block: 120px; }
.head { max-width: 760px; margin-bottom: 46px; }
.head h2 { margin: 10px 0 0; font-size: clamp(30px, 4.6vw, 56px); font-weight: 800; line-height: 1.25; letter-spacing: -.6px; text-wrap: balance; }
.head p { margin: 14px 0 0; color: var(--dim); font-size: 17px; }

.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.card { position: relative; background: var(--glass); border: 1px solid var(--line); border-radius: 24px; padding: 30px 30px 26px; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); display: flex; flex-direction: column; gap: 14px; min-width: 0; overflow: hidden; transition: border-color .35s, transform .35s; }
.card::before { content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: conic-gradient(from var(--a, 0deg), transparent 0 70%, rgba(25,205,189,.9) 80%, transparent 90%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .35s; pointer-events: none; }
.card:hover { transform: translateY(-4px); border-color: rgba(25,205,189,.35); }
.card:hover::before { opacity: 1; animation: spin 3s linear infinite; }
@property --a { syntax: '<angle>'; inherits: false; initial-value: 0deg; }
@keyframes spin { to { --a: 360deg; } }
.card .kind { font-size: 12.5px; font-weight: 700; color: var(--teal); letter-spacing: .3px; }
.card h3 { margin: 0; font-size: 27px; font-weight: 800; line-height: 1.35; }
.card p { margin: 0; color: var(--soft); font-size: 15.5px; }
.card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; color: var(--soft); font-size: 15px; }
.card li { display: flex; gap: 10px; align-items: baseline; }
.card li::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--teal); transform: translateY(-2px); box-shadow: 0 0 10px var(--teal); }
.card .act { margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); }
.num { font-size: 64px; font-weight: 800; line-height: 1; color: transparent; -webkit-text-stroke: 1px rgba(25,205,189,.6); position: absolute; left: 24px; top: 18px; font-variant-numeric: tabular-nums; }

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.step { border-top: 2px solid var(--teal); padding-top: 20px; min-width: 0; }
.step .n { font-size: 15px; color: var(--teal); font-weight: 800; }
.step h3 { margin: 6px 0 8px; font-size: 22px; font-weight: 800; }
.step p { margin: 0; color: var(--dim); font-size: 15.5px; }

.dz { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.dz-word { font-size: clamp(66px, 12vw, 160px); font-weight: 800; line-height: 1; letter-spacing: -2px; background: linear-gradient(100deg, var(--ink) 10%, var(--teal) 55%, var(--teal-deep) 90%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.dz-latin { display: block; margin-top: 12px; font-size: 14px; letter-spacing: 7px; color: var(--dim); direction: ltr; text-align: right; font-weight: 500; }
.dz p { margin: 0 0 20px; font-size: 18px; color: var(--soft); line-height: 2.05; }

.why { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.why div { background: var(--glass); border: 1px solid var(--line); border-radius: 20px; padding: 22px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); min-width: 0; }
.why b { display: block; font-size: 18px; font-weight: 800; margin-bottom: 6px; }
.why span { color: var(--dim); font-size: 14.5px; }

.band { background: linear-gradient(110deg, rgba(25,205,189,.16), rgba(11,27,58,.7)); border: 1px solid rgba(25,205,189,.3); border-radius: 28px; padding: 44px; display: grid; gap: 22px; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.band h2 { margin: 0; font-size: clamp(26px, 3.8vw, 44px); font-weight: 800; line-height: 1.3; text-wrap: balance; }

/* contact pieces */
.links { display: flex; flex-wrap: wrap; gap: 12px; }
.chip { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; background: rgba(234,246,244,.05); border: 1px solid var(--line); border-radius: 999px; padding: 9px 16px 9px 18px; font-weight: 700; font-size: 15px; transition: border-color .25s, transform .25s; }
.chip:hover { transform: translateY(-2px); border-color: rgba(25,205,189,.55); }
.chip svg { width: 22px; height: 22px; flex: none; }
.ico-tg { fill: #26A5E4; } .ico-wa { fill: #25D366; } .ico-ph, .ico-em { fill: none; stroke: var(--teal); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.panel { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 24px; padding: 10px 28px; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); min-width: 0; }
.row { display: flex; justify-content: space-between; align-items: baseline; gap: 18px; padding: 15px 0; border-bottom: 1px dashed var(--line); font-size: 15.5px; flex-wrap: wrap; }
.row:last-child { border-bottom: 0; }
.row > span { color: var(--dim); white-space: nowrap; }
.row > b, .row > a { font-weight: 700; text-align: left; font-variant-numeric: tabular-nums; text-decoration: none; }
.cols { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; align-items: start; }
form.req { background: var(--glass-strong); border: 1px solid var(--line); border-radius: 24px; padding: 26px; display: grid; gap: 14px; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); min-width: 0; }
form.req h2 { margin: 0 0 4px; font-size: 22px; font-weight: 800; }
label { display: grid; gap: 6px; font-size: 14px; color: var(--dim); }
input, select, textarea { font-family: var(--f); font-size: 15px; color: var(--ink); background: rgba(3,7,15,.6); border: 1px solid var(--line); border-radius: 12px; padding: 11px 14px; width: 100%; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--teal); }
textarea { min-height: 100px; resize: vertical; }
.msg { margin: 0; font-size: 14px; color: var(--teal); min-height: 1.4em; }
.copy { font-family: var(--f); font-size: 12.5px; background: none; border: 1px solid var(--line); color: var(--dim); border-radius: 999px; padding: 2px 11px; cursor: pointer; margin-inline-start: 8px; }

/* inner pages */
.pagehead { padding-block: 120px 40px; }
.pagehead h1 { margin: 10px 0 0; font-size: clamp(40px, 7vw, 84px); font-weight: 800; line-height: 1.1; letter-spacing: -1px; }
.pagehead p { max-width: 720px; color: var(--soft); font-size: 18px; margin: 16px 0 0; }
.prose { max-width: 820px; color: var(--soft); font-size: 16.5px; }
.prose h2 { color: var(--ink); font-size: 24px; font-weight: 800; margin: 38px 0 10px; }
.prose p, .prose li { line-height: 2.1; }
.prose a { color: var(--teal); }
.box { background: var(--glass); border: 1px solid var(--line); border-radius: 24px; padding: 30px; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }

/* footer */
footer.foot { position: relative; z-index: 3; border-top: 1px solid var(--line); background: rgba(3,7,15,.86); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); padding-block: 50px 34px; margin-top: 60px; }
.fgrid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr) auto; gap: 30px; align-items: start; }
.fgrid p { margin: 10px 0 0; color: var(--dim); font-size: 14px; }
.fgrid h4 { margin: 0 0 10px; font-size: 14px; color: var(--ink); }
.fl { display: grid; gap: 8px; font-size: 14px; }
.fl a { color: var(--dim); text-decoration: none; }
.fl a:hover { color: var(--ink); }
#enamad-slot:empty { display: none; }
#enamad-slot { min-width: 125px; min-height: 136px; }
.legal { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 12.5px; color: var(--dim); }

.reveal { transition: opacity .9s ease, transform .9s ease; }
.js .reveal.pre { opacity: .001; transform: translateY(26px); }

@media (max-width: 900px) {
  .menu { position: fixed; inset: 61px 0 auto 0; flex-direction: column; gap: 0; background: rgba(3,7,15,.97); border-bottom: 1px solid var(--line); padding: 8px var(--gr) 16px var(--gl); display: none; }
  .menu.open { display: flex; }
  .menu a { padding: 12px 4px; font-size: 16px; border-bottom: 1px solid var(--line); }
  .burger { display: block; }
  .top .wrap { gap: 10px; }
  .top .btn { display: none; }
  .sound { margin-inline-start: auto; padding: 7px 11px; }
  .sound .lbl { display: none; }
  .grid2, .steps, .dz, .cols { grid-template-columns: minmax(0, 1fr); }
  .why { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fgrid { grid-template-columns: minmax(0, 1fr); }
  section.block { padding-block: 84px; }
  .band { padding: 28px; }
}
@media (max-width: 520px) { .why { grid-template-columns: minmax(0, 1fr); } .card { padding: 24px 22px 22px; } }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .grain, .gate-logo, .cue i::after, .sound.on .bars i, .card:hover::before { animation: none; }
  .reveal, .btn, .card { transition: none; }
}

/* additions */
.entered .gate { display: none; }
.form-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.form-actions .btn { flex: 1 1 160px; }
.btn svg { width: 20px; height: 20px; flex: none; }
.btn-primary .ico-wa { fill: #021A18; }
.note { color: var(--dim); font-size: 14px; margin: 18px 0 0; }
.mini { display: inline-flex; align-items: center; gap: 8px; color: var(--dim); text-decoration: none; font-size: 13px; }
.mini svg { width: 15px; height: 15px; fill: currentColor; opacity: .8; }
.mini:hover { color: var(--ink); }
.fl a { display: inline-flex; align-items: center; gap: 8px; }
.fl svg { width: 16px; height: 16px; flex: none; }
.legal a { color: var(--dim); text-decoration: none; margin-inline-start: 14px; }
.legal a:hover { color: var(--ink); }
.prose ul { padding-inline-start: 20px; }
.box + .box, .panel + .note { margin-top: 18px; }
.split { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 28px; align-items: start; }
@media (max-width: 900px) { .split { grid-template-columns: minmax(0, 1fr); } }
.credit { font-size: 11.5px; color: var(--dim); opacity: .75; }

.hero { position: relative; }
.hero > * { position: relative; }
.hero::before { content: ""; position: absolute; inset: 20% -10% -5% 25%; background: radial-gradient(closest-side, rgba(3,7,15,.72), rgba(3,7,15,0)); pointer-events: none; }
.why span { color: var(--soft); }
@media (max-width: 900px) { .hero::before { inset: 35% -20% -5% -20%; } }

/* ---- v2.1: contrast + motion ---- */
:root { --bg: #02050C; --dim: #A3B8C6; --soft: #D6E4EB; --blue: #3D7BFF; }
body { background: var(--bg); }
.grad { background: linear-gradient(100deg, #EAF6F4 0%, #19CDBD 38%, #3D7BFF 66%, #F2B45A 100%); background-size: 220% auto; -webkit-background-clip: text; background-clip: text; color: transparent; animation: shine 9s linear infinite; }
@keyframes shine { to { background-position: 220% center; } }
.progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 80; transform-origin: right center; transform: scaleX(var(--p, 0)); background: linear-gradient(270deg, var(--teal), var(--blue), var(--amber)); box-shadow: 0 0 14px rgba(25,205,189,.7); pointer-events: none; }
.glow { position: fixed; z-index: 2; width: 520px; height: 520px; margin: -260px 0 0 -260px; border-radius: 50%; pointer-events: none; background: radial-gradient(closest-side, rgba(25,205,189,.16), rgba(61,123,255,.07) 55%, transparent 72%); mix-blend-mode: screen; transform: translate3d(-999px,-999px,0); transition: opacity .4s; }
@media (hover: none) { .glow { display: none; } }

/* hero word reveal (runs after entering) */
.js .hero .w { display: inline-block; opacity: 0; transform: translateY(.45em) scale(.96); filter: blur(10px); }
.js.go .hero .w { animation: wordIn 1.15s cubic-bezier(.2,.75,.2,1) forwards; animation-delay: calc(var(--i, 0) * 110ms + 150ms); }
@keyframes wordIn { to { opacity: 1; transform: none; filter: blur(0); } }
.js .hero .fade { opacity: 0; transform: translateY(14px); }
.js.go .hero .fade { animation: wordIn 1s ease forwards; animation-delay: calc(var(--i, 0) * 110ms + 500ms); }

/* marquee */
.marquee { position: relative; z-index: 3; overflow: hidden; border-block: 1px solid var(--line); background: rgba(2,6,16,.72); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); padding-block: 15px; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee .track { display: flex; width: max-content; animation: marq 42s linear infinite; }
.marquee span { display: inline-flex; align-items: center; gap: 30px; padding-inline: 15px; font-size: clamp(17px, 2vw, 22px); font-weight: 800; color: var(--soft); white-space: nowrap; }
.marquee span::after { content: ""; width: 9px; height: 9px; transform: rotate(45deg); background: var(--amber); box-shadow: 0 0 12px var(--amber); }
.marquee span:nth-child(3n+2) { color: var(--teal); }
@keyframes marq { to { transform: translateX(50%); } }

/* tilt + glare on cards */
.tilt { transform-style: preserve-3d; transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(var(--ty, 0)); transition: transform .5s cubic-bezier(.2,.7,.2,1), border-color .35s; }
.tilt:hover { --ty: -4px; transition: transform .12s linear, border-color .35s; }
.tilt::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(255,255,255,.09), transparent 45%); opacity: 0; transition: opacity .3s; }
.tilt:hover::after { opacity: 1; }
.card .kind, .step .n { color: var(--amber); }
.card h3 a { text-decoration: none; }
.card .ico { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(25,205,189,.22), rgba(61,123,255,.18)); border: 1px solid rgba(25,205,189,.35); }
.card .ico svg { width: 24px; height: 24px; fill: none; stroke: var(--teal); stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

.steps.s4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.step { border-top-color: transparent; border-image: linear-gradient(270deg, var(--teal), var(--blue)) 1; }

/* industries */
.ind { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.ind > div { position: relative; background: var(--glass); border: 1px solid var(--line); border-radius: 22px; padding: 24px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); overflow: hidden; min-width: 0; }
.ind b { display: block; font-size: 19px; font-weight: 800; margin-bottom: 6px; }
.ind p { margin: 0; color: var(--soft); font-size: 15px; }
.ind small { display: inline-block; margin-bottom: 10px; color: var(--amber); font-weight: 700; font-size: 12.5px; }

/* trust strip */
.trust { display: flex; flex-wrap: wrap; gap: 10px 26px; align-items: center; justify-content: center; padding: 20px 26px; border: 1px solid rgba(242,180,90,.32); border-radius: 20px; background: linear-gradient(110deg, rgba(242,180,90,.08), rgba(25,205,189,.07)); font-size: 14.5px; color: var(--soft); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.trust b { color: var(--ink); }
.trust i { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); display: inline-block; }

/* faq */
.faq { display: grid; gap: 12px; max-width: 900px; }
.faq details { background: var(--glass); border: 1px solid var(--line); border-radius: 18px; padding: 4px 22px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); transition: border-color .3s; }
.faq details[open] { border-color: rgba(25,205,189,.45); }
.faq summary { cursor: pointer; list-style: none; padding: 16px 0; font-weight: 800; font-size: 17px; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--line); color: var(--teal); font-weight: 400; font-size: 20px; transition: transform .3s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 18px; color: var(--soft); font-size: 15.5px; line-height: 2.05; }

/* article cards + article page */
.arts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.art { position: relative; display: flex; flex-direction: column; gap: 10px; text-decoration: none; background: var(--glass); border: 1px solid var(--line); border-radius: 22px; padding: 24px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); min-width: 0; overflow: hidden; }
.art .meta { font-size: 12.5px; color: var(--dim); display: flex; gap: 12px; flex-wrap: wrap; }
.art .meta b { color: var(--amber); font-weight: 700; }
.art h3 { margin: 0; font-size: 19px; line-height: 1.6; font-weight: 800; }
.art p { margin: 0; font-size: 14.5px; color: var(--soft); }
.art .more { margin-top: auto; padding-top: 8px; color: var(--teal); font-weight: 700; font-size: 14px; }
.article { max-width: 820px; color: var(--soft); font-size: 17px; line-height: 2.15; }
.article h2 { color: var(--ink); font-size: clamp(22px, 2.6vw, 28px); font-weight: 800; line-height: 1.5; margin: 46px 0 12px; }
.article h3 { color: var(--ink); font-size: 20px; font-weight: 800; margin: 30px 0 8px; }
.article a { color: var(--teal); }
.article strong { color: var(--ink); }
.article ul, .article ol { padding-inline-start: 22px; }
.article li { margin-bottom: 6px; }
.article blockquote { margin: 24px 0; padding: 4px 20px; border-inline-start: 3px solid var(--amber); color: var(--ink); }
.tip { margin: 30px 0; padding: 20px 24px; border-radius: 18px; border: 1px solid rgba(25,205,189,.4); background: linear-gradient(110deg, rgba(25,205,189,.1), rgba(61,123,255,.08)); color: var(--ink); }
.tip b { color: var(--teal); }
.crumbs { font-size: 13px; color: var(--dim); display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.crumbs a { color: var(--dim); text-decoration: none; }
.crumbs a:hover { color: var(--teal); }
.crumbs i { width: 5px; height: 5px; border-radius: 50%; background: var(--line); background: var(--dim); opacity: .5; }
.post-meta { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 14px; color: var(--dim); }
.post-meta b { color: var(--amber); }

/* products */
.prods { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.badge { display: inline-flex; align-items: center; gap: 7px; font-size: 12.5px; font-weight: 700; color: var(--teal); border: 1px solid rgba(25,205,189,.4); border-radius: 999px; padding: 3px 11px; width: fit-content; }
.badge.amber { color: var(--amber); border-color: rgba(242,180,90,.45); }

/* flashcard demo */
.demo { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 30px; align-items: center; }
.flash { perspective: 1200px; height: 300px; cursor: pointer; }
.flash .inner { position: relative; width: 100%; height: 100%; transition: transform .8s cubic-bezier(.2,.8,.2,1); transform-style: preserve-3d; }
.flash.flip .inner { transform: rotateY(180deg); }
.flash .face { position: absolute; inset: 0; border-radius: 26px; padding: 28px; backface-visibility: hidden; -webkit-backface-visibility: hidden; display: flex; flex-direction: column; justify-content: center; gap: 10px; border: 1px solid rgba(25,205,189,.45); background: linear-gradient(140deg, rgba(10,30,60,.92), rgba(4,12,28,.95)); box-shadow: 0 30px 80px -30px rgba(25,205,189,.45); }
.flash .back { transform: rotateY(180deg); border-color: rgba(242,180,90,.5); }
.flash .en { direction: ltr; text-align: left; font-family: system-ui, -apple-system, 'Segoe UI', sans-serif; }
.flash .word { font-size: 44px; font-weight: 800; color: var(--ink); letter-spacing: -.5px; }
.flash .ipa { color: var(--teal); font-size: 17px; }
.flash .ex { color: var(--soft); font-size: 16px; font-style: italic; }
.flash .fa { font-size: 30px; font-weight: 800; color: var(--amber); }
.flash .hint { position: absolute; bottom: 16px; inset-inline-start: 24px; font-size: 12.5px; color: var(--dim); }
.demo-ctrl { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.demo-ctrl button { font-family: var(--f); }
.demo-note { font-size: 13px; color: var(--dim); margin-top: 10px; }

.check { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.check li { display: flex; gap: 12px; align-items: baseline; color: var(--soft); }
.check li::before { content: ""; flex: none; width: 18px; height: 10px; border-inline-start: 2px solid var(--teal); border-bottom: 2px solid var(--teal); transform: rotate(-45deg) translateY(-3px); }

@media (max-width: 900px) {
  .steps.s4, .ind, .arts, .prods, .demo { grid-template-columns: minmax(0, 1fr); }
  .trust { justify-content: flex-start; }
}
@media (prefers-reduced-motion: reduce) {
  .grad, .marquee .track { animation: none; }
  .js .hero .w, .js .hero .fade { opacity: 1; transform: none; filter: none; animation: none; }
  .tilt { transform: none !important; }
}

/* ---------- v2.2 — agentic core, service map, mega menu ---------- */
.dd { position: relative; display: flex; align-items: center; }
.dd-t { display: inline-flex; align-items: center; gap: 7px; }
.dd-t::after { content: ""; width: 6px; height: 6px; border-left: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-2px) rotate(-45deg); opacity: .8; }
.dd-p { position: absolute; top: calc(100% + 16px); inset-inline-start: -22px; display: grid; grid-template-columns: repeat(3, minmax(168px, 1fr)); gap: 6px 26px; padding: 22px 24px; background: rgba(3,8,18,.97); border: 1px solid var(--line); border-radius: 20px; box-shadow: 0 30px 80px rgba(0,0,0,.55); opacity: 0; visibility: hidden; transform: translateY(8px); transition: opacity .2s ease, transform .2s ease, visibility .2s; z-index: 70; }
.dd-p::before { content: ""; position: absolute; inset: -18px 0 auto; height: 18px; }
.dd:hover .dd-p, .dd:focus-within .dd-p { opacity: 1; visibility: visible; transform: none; }
.dd-p > div { display: grid; gap: 2px; align-content: start; }
.dd-p small { color: var(--amber); font-size: 12px; font-weight: 700; margin-bottom: 6px; white-space: nowrap; }
.menu .dd-p a { color: var(--soft); padding: 6px 0; white-space: nowrap; }
.menu .dd-p a:hover, .menu .dd-p a[aria-current="page"] { color: var(--teal); }

.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-top: 30px; }
.stats > div { background: var(--glass); border: 1px solid var(--line); border-radius: 20px; padding: 20px 22px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); min-width: 0; }
.stats b { display: block; font-size: clamp(32px, 3.6vw, 46px); font-weight: 800; line-height: 1.2; background: linear-gradient(270deg, var(--teal), var(--blue)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stats b small { font-size: .42em; font-weight: 700; }
.stats > div > span { display: block; margin-top: 4px; color: var(--soft); font-size: 14.5px; line-height: 1.7; }

.agentic { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 44px; align-items: center; }
.loop { position: relative; width: 100%; max-width: 440px; aspect-ratio: 1; margin-inline: auto; }
.loop .ring { position: absolute; inset: 13%; border-radius: 50%; border: 1px dashed rgba(25,205,189,.5); animation: orbit 22s linear infinite; }
.loop .ring::after { content: ""; position: absolute; inset: 15%; border-radius: 50%; border: 1px solid rgba(61,123,255,.28); }
.loop .ring i { position: absolute; top: -6px; left: calc(50% - 6px); width: 12px; height: 12px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 18px var(--amber), 0 0 42px rgba(242,180,90,.55); }
@keyframes orbit { to { transform: rotate(360deg); } }
.loop .core-dot { position: absolute; inset: 35%; border-radius: 50%; display: grid; place-items: center; text-align: center; font-weight: 800; font-size: clamp(17px, 2vw, 21px); line-height: 1.3; background: radial-gradient(circle at 35% 30%, rgba(25,205,189,.55), rgba(11,27,58,.92) 70%); border: 1px solid rgba(25,205,189,.55); box-shadow: 0 0 70px rgba(25,205,189,.28), inset 0 0 30px rgba(25,205,189,.22); }
.loop .core-dot small { display: block; font-size: 10.5px; color: var(--soft); font-weight: 600; letter-spacing: 2px; }
.loop .node { position: absolute; display: flex; align-items: center; gap: 8px; white-space: nowrap; background: var(--glass-strong); border: 1px solid rgba(25,205,189,.28); border-radius: 999px; padding: 7px 14px 7px 16px; font-size: 14px; font-weight: 700; box-shadow: 0 10px 30px rgba(0,0,0,.4); }
.loop .node b { width: 24px; height: 24px; flex: none; border-radius: 50%; display: grid; place-items: center; font-size: 12.5px; background: linear-gradient(135deg, var(--teal), var(--blue)); color: #02050C; }
.loop .n1 { top: 13%; left: 50%; transform: translate(-50%, -50%); }
.loop .n3 { top: 87%; left: 50%; transform: translate(-50%, -50%); }
.loop .n2 { top: 50%; right: 0; transform: translateY(-50%); }
.loop .n4 { top: 50%; left: 0; transform: translateY(-50%); }

.card.core { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 18px 40px; padding: 38px; border-color: rgba(25,205,189,.4); background: linear-gradient(120deg, rgba(25,205,189,.14), rgba(5,13,30,.8) 55%); }
.card.core .core-main { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.card.core h3 { font-size: clamp(28px, 3vw, 38px); }
.card.core ul { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 18px; }
.card.core .core-side { display: flex; flex-direction: column; gap: 12px; justify-content: center; min-width: 0; }
.card.core .core-side small { color: var(--amber); font-weight: 700; font-size: 13px; }
.card.core .core-side p { font-size: 14.5px; color: var(--dim); }
.card.core .agents { display: flex; flex-wrap: wrap; gap: 8px; }
.card.core .agents span { border: 1px solid rgba(25,205,189,.35); background: rgba(25,205,189,.08); border-radius: 999px; padding: 5px 14px; font-size: 14px; color: var(--soft); }
.card.core .act { grid-column: 1 / -1; display: flex; gap: 12px; flex-wrap: wrap; }
.core-tag { position: absolute; top: -13px; inset-inline-start: 32px; background: var(--amber); color: #1A1205; font-size: 12.5px; font-weight: 800; padding: 3px 14px; border-radius: 999px; box-shadow: 0 0 22px rgba(242,180,90,.45); }

.layer { display: flex; align-items: center; gap: 16px; margin: 40px 0 18px; }
.layer span { color: var(--amber); font-weight: 800; font-size: 14px; white-space: nowrap; }
.layer i { flex: 1; height: 1px; background: linear-gradient(270deg, rgba(242,180,90,.5), rgba(143,166,182,.08)); }
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.grid3 .card { padding: 26px 24px 22px; }
.grid3 .card h3 { font-size: 22px; }
.grid3 .card p { font-size: 15px; }

.paths { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.path { position: relative; display: flex; flex-direction: column; gap: 8px; background: var(--glass); border: 1px solid var(--line); border-radius: 22px; padding: 24px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); min-width: 0; }
.path small { color: var(--amber); font-weight: 700; font-size: 12.5px; }
.path b { font-size: 20px; font-weight: 800; line-height: 1.4; }
.path p { margin: 0; color: var(--soft); font-size: 14.5px; }
.path .plinks { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); display: grid; gap: 4px; }
.path .plinks a { text-decoration: none; color: var(--teal); font-size: 14.5px; font-weight: 700; display: flex; align-items: center; gap: 9px; padding: 3px 0; }
.path .plinks a::before { content: ""; width: 14px; height: 2px; flex: none; border-radius: 2px; background: currentColor; }
.path .plinks a:hover { color: var(--ink); }

.vs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.vs > div { background: var(--glass); border: 1px solid var(--line); border-radius: 24px; padding: 28px; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }
.vs .agent { border-color: rgba(25,205,189,.42); background: linear-gradient(120deg, rgba(25,205,189,.13), rgba(5,13,30,.8) 60%); }
.vs h3 { margin: 0 0 14px; font-size: 22px; font-weight: 800; }
.vs ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; color: var(--soft); font-size: 15.5px; }
.vs li { display: flex; gap: 12px; align-items: baseline; }
.vs .bot li::before { content: "—"; color: var(--dim); flex: none; }
.vs .agent li::before { content: "✓"; color: var(--teal); font-weight: 800; flex: none; }

.olist { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; counter-reset: o; }
.olist li { counter-increment: o; display: grid; grid-template-columns: 42px minmax(0, 1fr); gap: 0 14px; align-items: start; background: var(--glass); border: 1px solid var(--line); border-radius: 18px; padding: 16px 18px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.olist li::before { content: counter(o, persian); grid-row: span 2; width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; font-weight: 800; color: #02050C; background: linear-gradient(135deg, var(--teal), var(--blue)); }
.olist b { font-size: 18px; font-weight: 800; }
.olist span { color: var(--soft); font-size: 15px; }
.philo .badge { margin-bottom: 4px; }

@media (max-width: 1100px) { .paths, .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 900px) {
  .menu { max-height: calc(100svh - 61px); overflow-y: auto; }
  .dd { display: block; }
  .dd-t { display: flex; }
  .dd-t::after { display: none; }
  .dd-p { position: static; opacity: 1; visibility: visible; transform: none; grid-template-columns: minmax(0, 1fr); gap: 12px; background: transparent; border: 0; box-shadow: none; padding: 10px 0 8px; }
  .dd-p::before { display: none; }
  .menu .dd-p a { border-bottom: 0; padding: 6px 0; padding-inline-start: 16px; font-size: 15px; }
  .dd-p small { padding-inline-start: 4px; margin: 4px 0 0; }
  .agentic, .card.core, .grid3, .vs { grid-template-columns: minmax(0, 1fr); }
  .card.core { padding: 30px 24px 24px; }
}
@media (max-width: 520px) {
  .card.core ul { grid-template-columns: minmax(0, 1fr); }
  .paths { grid-template-columns: minmax(0, 1fr); }
  .stats > div { padding: 16px; }
  .loop .node { font-size: 12.5px; padding: 6px 10px 6px 12px; gap: 6px; }
  .loop .node b { width: 21px; height: 21px; font-size: 11.5px; }
}
@media (prefers-reduced-motion: reduce) { .loop .ring { animation: none; } }
@media (max-width: 900px) { .hero::before { inset: 35% 0 -5% 0; } }
.core-tag { top: 22px; inset-inline-start: auto; inset-inline-end: 24px; }
.head h2, .head p, .pagehead h1, .pagehead > p { text-shadow: 0 2px 18px rgba(3,7,15,.85); }
@media (max-width: 900px) { .menu { background: #03070F; } .menu > a[href$="diapazon.html"] { display: none; } }
.head h2 .grad, .pagehead h1 .grad, .grad { text-shadow: none; }

/* ---------- v2.3 — persistent Agentic-core marker ---------- */
.corehud { position: fixed; left: max(18px, env(safe-area-inset-left, 0px)); bottom: max(18px, env(safe-area-inset-bottom, 0px)); z-index: 45; display: flex; align-items: center; gap: 12px; padding: 7px 18px 7px 7px; direction: ltr; text-decoration: none; color: var(--ink); background: rgba(3,8,18,.72); border: 1px solid rgba(25,205,189,.35); border-radius: 999px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 10px 40px rgba(0,0,0,.45), 0 0 30px rgba(25,205,189,.12); opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease, border-color .3s; }
.go .corehud { opacity: 1; transform: none; }
.corehud:hover { border-color: rgba(25,205,189,.75); }
.ch-ring { position: relative; width: 44px; height: 44px; flex: none; display: grid; place-items: center; }
.ch-ring svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.ch-ring circle { fill: none; stroke-width: 2.2; }
.ch-ring .trk { stroke: rgba(143,166,182,.2); }
.ch-ring .bar { stroke: var(--teal); stroke-linecap: round; stroke-dasharray: 119.4; stroke-dashoffset: calc(119.4 - 119.4 * var(--p, 0)); filter: drop-shadow(0 0 4px rgba(25,205,189,.8)); }
.ch-ring i { width: 14px; height: 14px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, #CFFFF9, var(--teal) 55%, #0B6F68); box-shadow: 0 0 16px var(--teal), 0 0 32px rgba(25,205,189,.5); animation: chPulse 2.4s ease-in-out infinite; }
.ch-ring em { position: absolute; inset: 7px; border-radius: 50%; animation: orbit 3.2s linear infinite; }
.ch-ring em::before { content: ""; position: absolute; top: -3px; left: calc(50% - 3px); width: 6px; height: 6px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 10px var(--amber); }
@keyframes chPulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.18); } }
.ch-txt { display: grid; line-height: 1.25; text-align: left; }
.ch-txt b { font-size: 14.5px; font-weight: 800; letter-spacing: .3px; background: linear-gradient(90deg, var(--teal), #8FE9FF); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ch-txt small { direction: rtl; font-size: 11.5px; color: var(--soft); }
@media (max-width: 900px) { .corehud { padding: 5px; gap: 0; bottom: max(14px, env(safe-area-inset-bottom, 0px)); left: max(14px, env(safe-area-inset-left, 0px)); } .ch-txt { display: none; } .ch-ring { width: 40px; height: 40px; } }
@media (prefers-reduced-motion: reduce) { .ch-ring i, .ch-ring em { animation: none; } }

/* ---------- v2.4 — EdTech cases ---------- */
.ind > a.case { position: relative; display: flex; flex-direction: column; gap: 4px; text-decoration: none; color: inherit; background: var(--glass); border: 1px solid var(--line); border-radius: 22px; padding: 24px; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); overflow: hidden; min-width: 0; transition: border-color .3s, transform .35s; }
.ind > a.case:hover { border-color: rgba(25,205,189,.45); }
.ind > a.case .more { margin-top: auto; padding-top: 12px; color: var(--teal); font-weight: 700; font-size: 14px; }
.ind > a.case .more::after { content: " ←"; }